Storage cabinet



FIG. 1 is a front-left-top perspective view of a storage cabinet showing my new design;

FIG. 2 is front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a top view thereof. 

CLAIM The ornamental design for a storage cabinet, as shown and described. 